4 layers304.5 × 217.2 mm
Latest Full Backplane
Trilobyte-CPU/8-bit-computer
A DIY 8-bit computer built mostly with discrete logic chips
478 parts2
4 layers77.2 × 53.3 mm
GPR RegisterArray
Trilobyte-CPU/8-bit-computer2A DIY 8-bit computer built mostly with discrete logic chips
- Size
- 77.2 × 53.3 mm
- Copper layers
- 4
- Thickness
- 4.69 mm
- Parts
- 16
- Nets
- 80
- Pads
- 249
- Tracks, vias
- 570, 89
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 20 Apr 2021
- Updated
- 9 Nov 2022
Overview
GPR RegisterArray is an open-source printed circuit board by Trilobyte-CPU, from the Trilobyte-CPU/8-bit-computer repository on GitHub. It is a 4-layer board of 77.2 × 53.3 mm with 16 parts on 80 nets, routed with 570 tracks and 89 vias.
It is built around the 74HC245D, 74HC193D and 74HC283P-E, with the 74HC21D, 74HC32D and CD4072BE among its other parts. Its parts include 13 ICs and 3 connectors.
Main components
6
74HC245D
SO-20-300mil-40℃~+125℃ 1 160uA 2V~6V 7.8mA 7.8mA 74HC 8 9ns@4.5V,50pF Bidirectional Tri-State SOIC-20-300mil Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffers, Drivers, Receivers, Transceivers
74HC193D
SO-16-40℃~+125℃ 1 18ns@6V 2V~6V 4 49MHz 500mW 74HC Asynchronous Divide-by-2 Reset function、Synchronous counting、Asynchronous parallel load、Multi-mode counting Rising Edge Synchronous Up Counter、Down Counter SO-16 Counters, Dividers ROHSNexperiaCounters / Dividers
74HC283P-E
-- Specialty Logic ROHSRenesas ElectronicsSpecialty Logic
74HC21D
SOP-14-40℃~+125℃ 1.5V~4.2V 1.9V、3.98V、4.4V、5.48V、5.9V 100mV、260mV、400mV 19ns@6V,50pF 2 2V~6V 2uA 4 5.2mA 5.2mA 500mV~1.8V 74HC Series AND Gate SOIC-14 Logic Gates ROHSNexperiaGates74HC32D
SOP-14-40℃~+125℃ 1.5V~4.2V 1.9V、4.4V、5.9V 100mV、400mV、400mV 2 2V~6V 2uA 4 5.2mA 5.2mA 500mV~1.8V 6ns@6V,50pF 74HC Series OR Gate SOIC-14 Logic Gates ROHSNexperiaLogic Gates
CD4072BE
DIP-14-55℃~+125℃ 1.5V~4V 1uA 2 3.4mA 3.4mA 3.5V~11V 3V~18V 4 4.95V、9.95V、14.95V 4000B Series 50mV 90ns@15V,50pF OR Gate DIP-14 Logic Gates ROHSTexas InstrumentsLogic Gates
Parts
16| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 74HC193 | Package_SO:SOIC-16_4.55x10.3mm_P1.27mm | U7, U8, U10, U11 |
| 2 | 74HC245 | Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm | U9, U12 |
| 2 | 74HC283 | Package_SO:SO-16_5.3x10.2mm_P1.27mm | U14, U15 |
| 1 | 74HC21 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U3 |
| 1 | 74HC32 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1 |
| 1 | 74HC640 | Package_SO:SO-20_12.8x7.5mm_P1.27mm | U13 |
| 1 | CD4072 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U4 |
| 1 | Conn_01x06 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J2 |
| 1 | Conn_01x07 | Connector_PinHeader_2.54mm:PinHeader_1x07_P2.54mm_Vertical | J3 |
| 1 | Conn_01x10 | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J1 |
| 1 | IS65C256AL | Package_SO:SOIC-28W_7.5x17.9mm_P1.27mm | U2 |
Questions
How big is the GPR RegisterArray PCB?
It measures 77.2 × 53.3 mm and has 4 copper layers, 4.69 mm thick.
What parts does the GPR RegisterArray use?
16 parts, built around the 74HC245D, 74HC193D, 74HC283P-E and 74HC21D. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the GPR RegisterArray KiCad files?
From the Trilobyte-CPU/8-bit-computer repository on GitHub, at the commit this page was made from: the board is PCBs/99_IN PROGRESS/IO-FIFO/GPR-RegisterArray/GPR-RegisterArray.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the GPR RegisterArray design in my own project?
Its repository states no licence, so its author keeps all rights: ask Trilobyte-CPU before reusing the design.
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